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H4-00 Error Code for Sharp AR-168D

We are getting an H4-00 error code.  We know it is either blown a fuser lamp or the thermo fuse is bad.  The tech is now saying replacement of the entire fuse assembly is necessary and now we have to wait on him to order it and then come fix it.  Does anyone know of a quick fix until he can reinstall the assembly?  Is replacement the only way to fix it? We are a law office and this is our only copier and fax machine. We are down without it. Please help!!!

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Your Tech is correct in replacing the Unit.
If the Fuser is not reaching the correct Temp it will give the H4-00 Code

The time and money it takes to repair the unit is greater than replacing.
Oredering all the parts for the unit takes longer then ordering the unit.

The only thing a tech can do is clean the Thermistor, reset with sim 14..
If that works, it might work for a hour, might work for days?

I personally carry this Fuser Unit in my car stock as this happens frequently..

Good luck

Posted on Oct 26, 2008

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H4 COD FOR SHARP 5316

Posted on Aug 19, 2011

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The H4 stands for a problem in the heater circuit for the fusing unit, It could be a thermo fuse, thermostat, thermistor, bad heat lamp or worn fuser rollers. The H4 will not reset until either of these components is repaired or replaced. Hope this helps.

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Hi,

Check

http://www.copier-help.com/copier-help/ecs/sharp/ecsar161.html

Thanks.

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I'm doing this from long term memory I may have the # and * symbols swapped

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In AR 275 Sharp copier H2 00 is very common problem, U have to only reset the above fuser error code as fallows

press # then intrrupt then c them intrrupt then display will show simulation mode then enter 14 then press ok key


If this is not enough then press press thermostat on fuser unit by removing the unit from machine this requires tech knowledge

OR you can try by replacing thermistor of fusing unit

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Even though u can check the lamp by removing back cover and turn on the machine u can observe the light of fusing lamp

pl ask for any difficulty.

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